* {
  margin: 0;
  padding: 0;
}

#big {
  width: 360px;
  height: 360px;
  background: url(01big.jpg) top center;
  border: 1px solid gray;
  margin-left: 300px;
  margin-top: 200px;
}
.box {
  width: 360px;
  height: 70px;
  margin-left: 300px;
}

ul {
  list-style: none;
}

li {
  float: left;
  border: 1px solid gray;
}

.box01 img {
  width: 70px;
  cursor: pointer;

}